the.com/undercut

The haircut that makes a mess on top look like a decision, not an accident.

means To cut something shorter underneath than on top, or more broadly, to weaken someone's position by offering less — a lower price, less effort, less support.

from A straightforward compound of 'under' + 'cut,' dating to the 1800s, originally used in boxing and sports for a blow or stroke delivered from below. It spread into business and economics by the early 1900s for selling below a competitor's price, and into hairdressing for a style shaved close underneath while left long on top — the sense behind the existing essence.

origin
Military and prison style before fashion stole it
2010s revival
Peaky Blinders made barbers rich
also means
Underpricing a rival to steal their customers
maintenance trap
Grows out into an awkward mullet fast
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